WO2015186923A1 - Module de batterie et bloc-batterie le comprenant - Google Patents

Module de batterie et bloc-batterie le comprenant Download PDF

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Publication number
WO2015186923A1
WO2015186923A1 PCT/KR2015/005348 KR2015005348W WO2015186923A1 WO 2015186923 A1 WO2015186923 A1 WO 2015186923A1 KR 2015005348 W KR2015005348 W KR 2015005348W WO 2015186923 A1 WO2015186923 A1 WO 2015186923A1
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WO
WIPO (PCT)
Prior art keywords
fastening member
battery
fastener
fastening
hole
Prior art date
Application number
PCT/KR2015/005348
Other languages
English (en)
Korean (ko)
Inventor
서재현
김성태
이진규
Original Assignee
주식회사 엘지화학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to PL15803727T priority Critical patent/PL3151307T3/pl
Priority to EP15803727.5A priority patent/EP3151307B1/fr
Priority to JP2016569595A priority patent/JP6474836B2/ja
Priority to US15/314,366 priority patent/US10283744B2/en
Publication of WO2015186923A1 publication Critical patent/WO2015186923A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/121—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/591—Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
    • F16B37/122—Threaded inserts, e.g. "rampa bolts"
    • F16B37/125—Threaded inserts, e.g. "rampa bolts" the external surface of the insert being threaded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a battery module and a battery pack including the same.
  • the secondary battery is an electric vehicle (EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle that has been proposed as a solution for air pollution of existing gasoline and diesel vehicles using fossil fuel. It is attracting attention as a power source such as (Plug-In HEV).
  • Small and mobile devices use one or two or four battery cells per device, whereas medium and large devices such as auxiliary power devices or automobiles use a battery module electrically connected to a plurality of battery cells due to the need for high output and large capacity. .
  • the battery module is preferably manufactured in a small size and weight as much as possible, a square battery, a pouch-type battery, etc., which can be charged with high integration and have a small weight to capacity, are mainly used as battery cells (unit cells) of medium and large battery modules. .
  • a pouch-type battery using an aluminum laminate sheet or the like as an exterior member has attracted much attention in recent years due to advantages such as low weight, low manufacturing cost, and easy form deformation.
  • a high capacity / high output battery pack composed of a plurality of battery modules has been used to stack a plurality of battery cells or battery modules adjacently and then fix them to a base plate.
  • a long fixing bolt and a separate fixing bracket for surface contact with the frame and the base plate of the battery module has been used as a means for fixing the battery module to the base plate.
  • the fastening structure using the long bolt and the fixing bracket as described above when excessive impact to the battery pack can occur in the direction of the battery cell stacking direction or perpendicular to the ground, it may cause a problem in the safety of the battery .
  • the space inside the battery pack not only cooperates with a separate fixing bracket, but also increases the weight of the battery pack, and the process of fastening the fixing bracket separately causes a problem of delaying the entire process time.
  • the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
  • An object of the present invention even when an external impact occurs, the battery module fixing structure can be maintained firmly, the battery does not need a separate structure for fixing the battery module in the battery pack is increased the internal space of the battery pack Is to provide a pack.
  • Still another object of the present invention is to provide a battery pack capable of easily performing a detachment operation of a battery module when assembling and replacing a battery pack, thereby reducing the overall work process time.
  • a unit module stack structure in which a plurality of unit modules having a structure in which the battery cells are mounted on a cartridge are stacked up and down with respect to the ground, and at least one through hole formed in the cartridge;
  • a module housing having at least one side surface of the unit module stack mounted on the bottom plate and a bottom surface of the bottom plate, and having a third fastener communicating with the second fastener;
  • a first fastening member having a through hole into which a second fastening member is inserted, perforated along a central axis, and passing through the first fastener and the through hole and coupled to a second fastener;
  • a second fastening member inserted into the through hole of the first fastening member and coupled to the third fastener;
  • the battery pack according to the present invention includes first and second units having a specific structure for fixing a unit module stack including a plurality of unit modules and upper and lower plates coupled to support upper and lower ends of the unit module stack to a module housing.
  • the first fastening member may include a head having an outer diameter greater than the inner diameter of the first fastener, a fastening bar inserted into the first fastener and the through hole, and the second fastener.
  • a thread for joining includes a first fastening end formed on an outer surface thereof, and a through hole is drilled along a central axis of the head, the fastening bar, and the first fastening end, and the second fastening member includes: A head having an outer diameter larger than an inner diameter of the through hole of the first fastening member, an insertion bar inserted into the through hole of the first fastening member, and protruding from a lower end of the through hole of the first fastening member to be coupled to the third fastener;
  • the screw thread may have a structure including a second fastening end formed on an outer surface thereof.
  • the head of the first fastening member is formed with an indentation for introducing and seating the head of the second fastening member, the structure of the wrench bolt can be formed on the inner surface of the upper end of the fastening bar.
  • the indentation may be a structure indented at least above the height of the head of the second fastening member.
  • the head of the second fastening member may be a structure in which the structure of the wrench bolt is formed.
  • the cartridge, the top plate and the bottom plate are coupled by the first fastening member, and then the second fastening member is fastened to the third fastener through the through hole to be coupled to the module housing.
  • the first fastening member is coupled by the first fastening member, and then the second fastening member is fastened to the third fastener through the through hole to be coupled to the module housing.
  • the second fastener and the third fastener is a structure in which a screw structure of a corresponding shape is stamped so that the first fastening end and the second fastening end of the first fastening member and the second fastening member are rotatably coupled.
  • a screw structure of a corresponding shape is stamped so that the first fastening end and the second fastening end of the first fastening member and the second fastening member are rotatably coupled.
  • the first fastening member and the second fastening site may have a structure made of a metal material, and the upper and lower plates may each be a metal material, but are not limited thereto.
  • the cartridge is a rectangular structure corresponding to the battery cell so that the battery cell can be mounted, the through hole through which the first fastening member for fixing the unit module stack is inserted is formed at four corners. It may be a structure.
  • the battery cell may be, for example, a pouch type battery cell having an electrode assembly built in a battery case of a laminate sheet including a resin layer and a metal layer.
  • the battery cell is a pouch type battery cell in which an electrode assembly having a cathode / separation membrane / cathode structure is sealed inside the battery case together with an electrolyte solution.
  • a pouch-type battery cell may be generally made of a pouch-type battery case, the battery case is an outer coating layer made of a polymer resin having excellent durability; A barrier layer made of a metal material that exhibits barrier properties against moisture, air, and the like; And it may be composed of a laminate sheet structure in which the inner sealant layer made of a polymer resin that can be heat-sealed is sequentially stacked.
  • the case may have various structures.
  • the upper and lower contact portions of the outer circumferential surface of the case may be formed by storing the electrode assembly in the upper and / or lower inner surfaces formed as two units.
  • the structure which heat-seals and seals, etc. are mentioned.
  • a pouch-type battery cell having such a structure is disclosed in PCT International Application No. PCT / KR2004 / 003312 of the applicant, which is incorporated by reference in the present invention.
  • the battery case may be a structure in which the electrode assembly is accommodated in the accommodating portion formed on the upper and / or lower inner surface as one unit member, and then the upper and lower contact portions of the outer circumferential surface of the case are heat-sealed and sealed.
  • the laminate sheet may be made of a structure including an inner resin layer of thermal fusion, a barrier metal layer, and an outer resin layer exhibiting durability.
  • the present invention also provides a large output large-capacity battery pack including the battery module as a unit.
  • the medium-large battery pack may have a structure in which various numbers of battery modules are mounted in an electrically connected state according to a required capacity or output.
  • the present invention also provides a device comprising the battery pack, wherein the device may be, for example, an electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, or a power storage device. But it is not limited thereto.
  • FIG. 1 is a perspective view of a battery cell mounted on a battery module
  • FIG. 2 is an exploded schematic view of FIG. 1;
  • FIG. 2 is an exploded schematic view of FIG. 1;
  • FIG. 3 is an exploded perspective view of a unit module stack according to one embodiment of the present invention.
  • FIG. 4 is a perspective view of the unit module stack of FIG. 3;
  • FIG. 5 is an exploded perspective view of a battery module according to an embodiment of the present invention.
  • FIG. 6 is a perspective view of the battery module of FIG. 5;
  • FIG. 7 is a perspective view of a fastening member according to one embodiment of the present invention.
  • FIG. 8 is a side view, a plan view and a bottom view of the fastening member of FIG. 7;
  • FIG. 9 is a perspective view of a second fastening member according to an embodiment of the present invention.
  • FIG. 1 is a perspective view schematically showing one exemplary battery cell mounted on a unit module of the present invention
  • FIG. 2 is an exploded schematic view of FIG. 1.
  • the pouch-type battery cell 200 inside the pouch-type battery case 100, the electrode assembly consisting of a positive electrode, a negative electrode and a separator disposed therebetween its positive and negative electrode tabs 220, 230 ) And two electrode terminals 222 and 232 electrically connected to each other are configured to be sealed to be exposed to the outside.
  • the battery case 100 includes a case body 140 including a concave shape receiving part 142 on which the electrode assembly 210 may be seated, and a cover 150 integrally connected to the body 140. have.
  • a plurality of positive electrode tabs 220 and a plurality of negative electrode tabs 230 are fused to each other and coupled to the electrode terminals 222 and 232.
  • the surplus portion 144 and the cover 150 of the case body 140 are heat-sealed by the heat welder, the short between the heat welder and the electrode terminals 222 and 232 is prevented, and the electrode terminal 222
  • the insulating film 240 is attached to upper and lower surfaces of the electrode terminals 222 and 232 to secure the sealing property between the battery pack 232 and the battery case 100.
  • the case body 140 and the cover 150 are composed of an outer resin layer 110, a barrier metal layer 120, and an inner resin layer 130, and the inner resin layer 130 is an outer surface of the case body 140. And it can be tightly fixed by the heat and pressure from the heat welding machine (not shown) applied to the outer surface of the cover 150.
  • the sealing part is formed by heat-sealing the contact portion between the excess part 144 of the case body 140 and the cover 150 while the electrode assembly 210 impregnated with the electrolyte is seated on the accommodating part 142.
  • FIG. 3 is an exploded perspective view of a unit module stack according to one embodiment of the present invention
  • FIG. 4 is a perspective view of the unit module stack of FIG. 3 schematically
  • FIG. 5 of the present invention An exploded perspective view of a battery module according to an embodiment is shown
  • FIG. 6 is a perspective view of the battery module of FIG. 5.
  • the battery module 500 is a unit module including a plurality of cartridges 20 which are stacked in the vertical direction with respect to the ground with the battery cells 200 mounted, respectively Sides of the unit module stack 300 mounted on the stack 300, the top plate 10, the bottom plate 30, and the bottom plate 30 supporting the top and bottom ends of the cartridges 20, respectively. And a module housing 70 having a structure surrounding the lower surface of the lower plate 30.
  • the through holes 21 are perforated in four corners of the cartridges 20, and the first fasteners 11 are perforated in the corresponding portions to communicate with the through holes 21 in the upper plate 10.
  • second fasteners (not shown) are drilled in the lower plate 30 at corresponding portions so as to communicate with the through holes 21.
  • third fasteners 71 are formed in corresponding portions to communicate with the second fasteners.
  • the inner circumferential surfaces of the second fasteners and the third fasteners 71 may include the following first fastening ends (FIG. 7: 54) formed in the first fastening member 50 and the second fastening member 60.
  • the screw structure (not shown) of the corresponding shape is engraved so that a 2nd fastening end (FIG. 7: 63) may rotate-engage. Accordingly, the first fastening end 54 of the first fastening member 50 is coupled to the second fastener of the lower plate 30, and the second fastening end 63 of the second fastening member 60 is a module. It is easily coupled to the third fasteners 71 of the housing 70.
  • FIG. 7 is a perspective view of a fastening member according to an embodiment of the present invention.
  • FIG. 8 is a side view, a plan view, and a bottom view of the fastening member of FIG. 7, and FIG. 9 of the present invention.
  • a perspective view of a second fastening member according to one embodiment is schematically shown.
  • a fastening member according to the present invention includes a first fastening member 50 and a second fastening member 60.
  • the first fastening member 50 has a head 51 having an outer diameter W2 larger than the inner diameter W1, a fastening bar 52 inserted into the first fastener 11, and a through hole 21 and a second fastening.
  • a first fastening end 54 having a screw thread for engaging the sphere is formed on the outer surface, and has a structure in which the through hole 55 is drilled along the central axis.
  • the head 51 of the first fastening member 50 is formed with an indentation 57 for stably seating the head 61 of the second fastening member 60, and is formed on the upper inner surface of the fastening bar 52.
  • a structure 56 of a wrench bolt is formed to facilitate fastening.
  • the second fastening member 60 may include the head 61 and the first fastening member 50 having an outer diameter W1 larger than the inner diameter W3 of the through hole 55 of the first fastening member 50.
  • An insertion bar 62 inserted into the through hole 55 and a second fastening end 63 protruding from the lower end of the through hole 55 to form a screw thread for engaging the third fastener 71 are formed on the outer surface thereof.
  • the head 61 has a structure 63 of a wrench bolt for facilitating fastening.
  • the first fastening member 50 may have through holes 21 and upper ends of the cartridge 20.
  • the first fasteners 11 of the plate 10 and the second fasteners (not shown) of the lower plate 30 are sequentially penetrated and mounted, and the second fastening member 50 is connected to the first fastening member 50.
  • the second fastening end 63 of the second fastening member 50 is rotatably coupled to the third fasteners 71 formed in the module housing 70 while being inserted into the module housing 70, thereby stacking the unit module stack 300.
  • the top plate 10, the bottom plate 30 and the module housing 70 are firmly fixed.
  • the battery module according to the present invention has the effect of improving the safety of the battery module fixed structure is firmly maintained even when an external impact such as advance or drop occurs by the fastening member of the bushing fastening structure. have.

Abstract

La présente invention concerne un module de batterie comprenant une pluralité d'éléments de batterie. La présente invention porte également sur un module de batterie caractérisé par la fourniture d'une structure d'une pluralité de modules unitaires comprenant les éléments de batterie montés dans une cartouche qui sont empilés verticalement à partir de la surface du sol ; qui comprennent une plaque supérieure dans laquelle de premiers trous de couplage soutenant respectivement le haut et le bas de l'empilement de modules unitaires sont percés, et une plaque inférieure dans laquelle sont percés de deuxièmes trous de couplage et un boîtier de module dans lequel de troisièmes trous de couplage reliés aux deuxièmes trous de couplage sont percés ; et qui sont fixés respectivement par couplage d'un premier élément de couplage et d'un second élément de couplage aux premiers trous de couplage, aux deuxièmes trous de couplage et aux troisièmes trous de couplage.
PCT/KR2015/005348 2014-06-02 2015-05-28 Module de batterie et bloc-batterie le comprenant WO2015186923A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL15803727T PL3151307T3 (pl) 2014-06-02 2015-05-28 Moduł akumulatora i zawierający go pakiet akumulatorów
EP15803727.5A EP3151307B1 (fr) 2014-06-02 2015-05-28 Module de batterie et bloc-batterie le comprenant
JP2016569595A JP6474836B2 (ja) 2014-06-02 2015-05-28 電池モジュール及びそれを含む電池パック
US15/314,366 US10283744B2 (en) 2014-06-02 2015-05-28 Battery module and battery pack

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KR1020140066757A KR101820935B1 (ko) 2014-06-02 2014-06-02 전지모듈 및 이를 포함하는 전지팩

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US10283744B2 (en) 2019-05-07
CN204680700U (zh) 2015-09-30
JP6474836B2 (ja) 2019-02-27
EP3151307B1 (fr) 2019-10-23
PL3151307T3 (pl) 2020-05-18
EP3151307A1 (fr) 2017-04-05
CN105304833A (zh) 2016-02-03
KR101820935B1 (ko) 2018-01-22
EP3151307A4 (fr) 2017-05-24
JP2017517117A (ja) 2017-06-22
US20170200925A1 (en) 2017-07-13
KR20150138626A (ko) 2015-12-10
CN105304833B (zh) 2018-04-20

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